WeChat Pay is free to use for most transactions, but there are some fees associated with the service. These fees may vary depending on the amount of money being sent, the currency the payment is being made in, and the country the payment is being sent to.
In Argentina, users are charged 0.6% of the total amount when making a payment using WeChat Pay. This fee is subtracted from the total amount of the payment and is paid by the person making the payment.